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K2 Think

K2 Think, the world’s leading open-source reasoning model - now running on Cerebras Inference at 2,000 tokens per second. Built by MBZUAI and G42, K2 Think delivers a new era for AI reasoning.

K2 Think

The world's most advanced
open-source AI reasoning model

Best Reasoning Performance

#1 in math across AIME 24/25, HSMT 25, and OMNI-Math-Hard.

Fastest Reasoning

2,000 tokens per second on Cerebras, 10x faster than GPUs.

Highest Efficiency

Smaller 32B model delivering higher performance than models twice the size.

Frontier Intelligence at 32B Parameters

K2-THINK exhibits remarkable parameter efficiency, providing comparable or superior performance to frontier reasoning models in complex math domains with an order of magnitude smaller model.

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“K2 Think on Cerebras represents a breakthrough moment for open-source advanced AI reasoning models, MBZUAI has proven that you don’t need 100B+ parameters to achieve top-tier performance—you need the right architecture and the right infrastructure. And when you pair an ultra-efficient model like K2 Think with Cerebras’ world-fastest inference engine, the result is nothing short of revolutionary. It’s the new standard for fast, smart, open AI.”

Andrew Feldman
CEO and co-founder, Cerebras

"By delivering over 2,000 tokens per second for Scout – more than 30 times faster than closed models like ChatGPT or Anthropic, Cerebras is helping developers everywhere to move faster, go deeper, and build better than ever before."

Eric Xing
President and University Professor at MBZUAI

"K2 Think has shifted the Al reasoning paradigm from 'bigger is better' to 'smarter is better. It signals the UAE's intent to push the Al frontier with technology that is open, efficient and highly capable. By proving that smaller, more resourceful models can rival the largest systems, this achievement shows how Abu Dhabi is shaping the next wave of global innovation."

Peng Xiao
Group CEO of G42, and MBZUAI Board Member

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